With the rising of cloud computing and big data, more and more companies start to build their own cloud storage system. Swift and Ceph are two popular open source software stacks, which are well deployed in today's OpenStack based cloud environment to implement object and virtual block service. In this presentation, we do a deep study on both swift and Ceph performance on Commodity x86 platform, including testing environment, methodolgy and thorough analysis. Tuning guide and optimization BKM (best known method) will also be shared for reference.